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    SplDoublyLinkedList::key

    (PHP 5 >= 5.3.0, PHP 7)

    SplDoublyLinkedList::key — Return current node index

    설명

    public mixed SplDoublyLinkedList::key ( void )

    This function returns the current node index

    인수

    이 함수는 인수가 없습니다.

    반환값

    The current node index.

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